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P0137 Diagnostic Trouble Code Discussion for August 2009

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0137
Help Request Posted
1994 Ford Explorer Sport 4.0L Excessive Emissions, RICH (BANKS 1&2) VIN: 1FMCU24X2R
P0137: rich exhaust bank 2 koer. i`ve run numerous tests as per flowcharts, no luck. prior to that, i found and replaced the fuel pressure regulator. i believe the vehicle is really running rich, as the o2 sensors voltages hang at 700 mv at idle, but if i create a vacuum leak, the dvom show...
August 14, 2009
2001 Chevrolet Express 3500 5.7L Hesitation, Stall, Misfire VIN: 1GBJG31R31
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. Thank You in advance for looking this over. Are there any CNG users out there with experiance on a Bay Tech 5.7 Chevrolet CNG conversion? We have a 2001 3500 Express van that is giving us problems. It will run fine for a few days then loose power, stall, and ...
August 24, 2009